llvm-config --src-root should print canonical path

[llvmbot]

Bugzilla Link	4169
Resolution	WORKSFORME
Resolved on	May 18, 2019 12:45
Version	trunk
OS	All
Reporter	LLVM Bugzilla Contributor
CC	@jryans

Extended Description

llvm-config --src-root returns

/Users/fawzi/d/ldc/llvm-build/../llvm/

in my configuration, and that becomes invalid if the build directory is deleted... even if the src directory is still present.
It is not difficult to keep a directory, but returning a canonicalized path would be better.

[jryans]

This seems to be working as desired now. The --src-root value comes from CMAKE_CURRENT_SOURCE_DIR which is a canonical path, and CMake is only build system these days.